Anti-reversion device of belt conveyor and belt conveyor

The utility model discloses an anti-reversion device of a belt conveyor and the belt conveyor, the anti-reversion device of the belt conveyor comprises a fixed part, a non-return part, a rotating part and an elastic part, the fixed part is used for being fixedly connected to a rack of the belt conveyor; the non-return piece is connected with the fixing piece and can swing relative to the fixing piece; the rotating piece is used for being fixedly connected to a roller of the belt conveyor and can rotate along with the roller, and the rotating piece is provided with a non-return groove; the elastic piece is arranged between the fixed piece and the non-return piece and used for making the non-return piece make contact with the rotating piece. According to the anti-reversion device of the belt conveyor, when the rotating piece rotates forwards along with the roller, the non-return piece slides along the rotating piece. When the roller loses power and reverses due to power failure, emergency and the like of the be